/* ==========================================================================
   PROTEAN IMAGE GROUP — MINIMAL BRUTALIST DESIGN SYSTEM
   Stark Monochrome, Hairline Grids, Architectural Typography
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --bg-main: #080808;
  --bg-surface: #111111;
  --bg-card: #141414;
  --border-subtle: #222222;
  --border-line: #333333;
  --border-stark: #ffffff;
  
  --text-primary: #ffffff;
  --text-secondary: #888888;
  --text-dim: #555555;
  
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  line-height: 1.5;
  background-color: var(--bg-main);
}

::selection {
  background: var(--text-primary);
  color: var(--bg-main);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: #333;
}

/* Layout Utilities */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hairline Buttons */
.btn-minimal {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.85rem 1.75rem;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-stark);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-minimal:hover {
  background: var(--text-primary);
  color: var(--bg-main);
}

.btn-minimal.btn-subtle {
  border-color: var(--border-line);
  color: var(--text-secondary);
}

.btn-minimal.btn-subtle:hover {
  border-color: var(--border-stark);
  color: var(--text-primary);
  background: transparent;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 8, 8, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-symbol {
  width: 10px;
  height: 10px;
  background: var(--text-primary);
  display: inline-block;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-menu a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.nav-menu a:hover {
  color: var(--text-primary);
}

/* Hero */
.hero-pad {
  padding: 6rem 0 4rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-mono-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-mono-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border: 1px solid var(--text-primary);
}

.hero-heading {
  font-family: var(--font-display);
  font-size: 3.8rem;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 500px;
  margin-bottom: 2.5rem;
}

.hero-frame-container {
  border: 1px solid var(--border-line);
  padding: 0.75rem;
  background: var(--bg-surface);
  position: relative;
}

.hero-frame-inner {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.hero-frame-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(20%) contrast(1.1);
  transition: transform 0.6s ease;
}

.hero-frame-container:hover .hero-frame-img {
  transform: scale(1.03);
}

.hero-frame-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 0.75rem;
}

/* Sections */
.section-pad {
  padding: 6rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
}

.section-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.filter-bar {
  display: flex;
  gap: 0.5rem;
}

.filter-item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.4rem 0.9rem;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-item.active, .filter-item:hover {
  color: var(--text-primary);
  border-color: var(--border-stark);
  background: var(--bg-card);
}

/* Minimalist Works Grid */
.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

.work-card {
  border: 1px solid var(--border-line);
  background: var(--bg-card);
  transition: border-color 0.25s, transform 0.25s;
  cursor: pointer;
}

.work-card:hover {
  border-color: var(--border-stark);
  transform: translateY(-3px);
}

.work-thumb-wrapper {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
  border-bottom: 1px solid var(--border-line);
}

.work-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(15%);
  transition: transform 0.5s ease, filter 0.5s ease;
}

.work-card:hover .work-thumb {
  transform: scale(1.05);
  filter: grayscale(0%);
}

.work-body {
  padding: 1.5rem;
}

.work-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.work-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.work-artist {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.work-specs-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.work-spec-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
}

/* Directors Grid */
.directors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.director-card {
  border: 1px solid var(--border-line);
  padding: 2rem;
  background: var(--bg-card);
  position: relative;
}

.director-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--border-stark);
}

.director-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
}

.director-name {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.director-role {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.director-bio {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Gear Specs Table */
.gear-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border: 1px solid var(--border-line);
}

.gear-table th {
  text-align: left;
  padding: 1rem;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-line);
  font-weight: 500;
}

.gear-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.gear-table tr:hover td {
  background: var(--bg-card);
}

/* Calculator Section */
.calc-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.calc-box {
  border: 1px solid var(--border-line);
  padding: 2rem;
  background: var(--bg-card);
}

.calc-group {
  margin-bottom: 1.5rem;
}

.calc-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.calc-select, .calc-range {
  width: 100%;
  background: var(--bg-main);
  border: 1px solid var(--border-line);
  color: var(--text-primary);
  padding: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
}

.calc-checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.calc-option-btn {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  padding: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
}

.calc-option-btn.selected {
  border-color: var(--border-stark);
  color: var(--text-primary);
  background: var(--bg-surface);
}

/* Summary Card */
.summary-card {
  border: 1px solid var(--border-stark);
  background: var(--bg-surface);
  padding: 2rem;
  font-family: var(--font-mono);
}

.summary-header {
  border-bottom: 1px solid var(--border-line);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  margin-bottom: 0.6rem;
  color: var(--text-secondary);
}

.summary-total {
  border-top: 1px solid var(--border-line);
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.summary-total-val {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  backdrop-filter: blur(6px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--bg-card);
  border: 1px solid var(--border-stark);
  max-width: 900px;
  width: 100%;
  padding: 2rem;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: transparent;
  border: 1px solid var(--border-line);
  color: var(--text-primary);
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-family: var(--font-mono);
}

.modal-close:hover {
  border-color: var(--border-stark);
}

/* Footer */
.site-footer {
  padding: 4rem 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border-subtle);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .calc-wrapper { grid-template-columns: 1fr; }
  .hero-heading { font-size: 2.6rem; }
  .nav-menu { display: none; }
}